If you're the type that always forgets your keys at home, then the OnGuard Doberman 6' Combination Cable bike lock is for you. It uses a four number combination lock to keep your bike all safe and secure, so you don't have to worry about bringing your keys.

Dual lock down deadbolt resists picking and prying attacks

M-cylinder mechanism is pick-proof and can't be drilled out

Ballistic plastic coating holds up under aggressive attacks and every day use

Thick, tough, and flexible braided steel cable is difficult to cut and easy to loop through your front wheel and frame

4 number combination lock so you don't have to worry about bringing your keys